undefined _post using image as submit

Question

im using a form to select from 3 images send a post to a php but the $_POST['stars']; is not getting there

<form action="components/update_score.php" method="POST">
    <input type="image" name="stars" src="imagenes/th/0.png" value="0" width="120" />
    <input type="image" name="stars" src="imagenes/th/1.png" value="1" width="120" />
    <input type="image" name="stars" src="imagenes/th/2.png" value="2" width="120" />
    <input type="image" name="stars" src="imagenes/th/3.png" value="3" width="120" />
    <input type="hidden" name="war_enemy" value="<?php echo $rws['war_enemy'];?>" />
    <input type="hidden" name="user_username" value="<?php echo $user_score;?>" />
    <input type="hidden" name="enemy_enemynumber" value="<?php echo $i;?>" />
</form>

and on the php

<?php
ini_set("display_errors",1);
session_start();
if(isset($_POST)){
   echo $_POST['stars'],'<br>';
   echo $_POST['war_enemy'],'<br>';
   echo $_POST['user_username'],'<br>';
   echo $_POST['enemy_enemynumber'],'<br>';
}    
?>   

sending this give me the Notice: Undefined index: stars i dont want to use a submit button i want to use the images to do so but cant find the way to send the post to the php any help is appreciated

Answer 1

You have 3 images with the same name change their name or you can use an array renaming stars as stars[] and your code will be something like this:

foreach ($_POST['stars'] as $star) {
    echo $star;
}

Also instead of src you need to add your image at value and please delete the src as you are using an input.